CF5073 Datasheet, PDF(1/14 Page) Nippon Precision Circuits Inc

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CF5073 Datasheet, PDF (1/14 Pages) Nippon Precision Circuits Inc – VCXO Module ICs with Built-in Varicap

CF5073 series

VCXO Module ICs with Built-in Varicap

OVERVIEW

The CF5073 series are VCXO ICs with built-in varicap diode. They use a recently developed negative-resis-

tance switching oscillation circuit, at oscillation startup and during normal oscillation, for both good oscilla-

tion startup characteristics and wide pullrange. Furthermore, it employs a CMOS process varicap diode, and

also features all the necessary VCXO structure circuit components on a single chip, forming a VCXO module

with just the connection of an external crystal.

FEATURES

I 3.0 to 3.6V supply voltage range

I 10MHz to 60MHz operating frequency

(varies with version)

I Uses negative-resistance switching function

I Varicap diode built-in

I Frequency divider built-in (varies with version: fO,

fO/2, fO/4, fO/8, fO/16, fO/32)

SERIES LINEUP

I CMOS output level

I 50 Â± 10% output duty

I 6mA (min) output drive capability

I 15pF output load capacitance CL

I Standby function

(high impedance in standby mode)

I Chip form (CF5073ÃÃ)

Version

CF5073A Ã

CF5073B Ã

Typical oscillation

frequency1 [MHz]

CF5073Ã1

CF5073Ã22

Output frequency

CF5073Ã32 CF5073Ã42

CF5073Ã52

CF5073Ã62

CF5073C Ã

CF5073D Ã

fO/2

fO/4

fO/8

fO/16

fO/32

CF5073E Ã

CF5073F Ã

1. The typical oscillation frequency is the oscillation frequency criteria for use when selecting the device version. Note that the oscillation

characteristics and pullability vary with the crystal used and the mounting conditions. Even for the same frequency, the optimal version can vary

with crystal characteristics, so careful evaluation should be exercised when selecting the device version.

2. These versions are produced after receiving a purchase order. Please ask our Sales & Marketing section for further detail.

APPLICATIONS

I VCXO modules

I Communications application

I Networking application

I Broadcasting application

ORDERING INFORMATION

Device

CF5073ÃÃâ1

Package

Chip form

NIPPON PRECISION CIRCUITS INC.â1

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